Speaker



FIG. 1 is a top perspective view of a speaker, showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left elevation view thereof;

FIG. 5 is a right elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The speaker portions shown in broken lines are unclaimed environment and do not form a part of the claimed design. 

CLAIM The ornamental design for a speaker, as shown and described. 